Change and Delay Contracts for Hybrid System Component Verification

2017 ◽  
pp. 134-151 ◽  
Author(s):  
Andreas Müller ◽  
Stefan Mitsch ◽  
Werner Retschitzegger ◽  
Wieland Schwinger ◽  
André Platzer
Keyword(s):  
Hybrid System ◽  
System Component

Exergy Analysis of a Hybrid Micro Gas Turbine Fuel Cell System Based on Existing Components

2012 ◽  
Author(s):  
D. P. Bakalis ◽  
A. G. Stamatis
Keyword(s):  
Fuel Cell ◽  
Hybrid System ◽  
Exergy Analysis ◽  
Cell System ◽  
System Component ◽  
Utilization Factor ◽  
Fuel Cell Stack ◽  
Micro Gas Turbine ◽  
Partial Load ◽  
Set Up

A hybrid system based on an existing recuperated microturbine and a pre-commercially available high temperature tubular solid oxide fuel cell is modeled in order to study its performance. Individual models are developed for the microturbine and fuel cell generator and merged into a single one in order to set up the hybrid system. The model utilizes performance maps for the compressor and turbine components for the part load operation. The full and partial load exergetic performance is studied and the amounts of exergy destruction and efficiency of each hybrid system component are presented, in order to evaluate the irreversibilities and thermodynamic inefficiencies. Moreover, the effects of various performance parameters such as fuel cell stack temperature and fuel utilization factor are investigated. Based on the available results, suggestions are given in order to reduce the overall system irreversibility. Finally, the environmental impact of the hybrid system operation is evaluated.

scholarly journals Tactical contract composition for hybrid system component verification

2018 ◽  
Vol 20 (6) ◽  
pp. 615-643 ◽  
Author(s):  
Andreas Müller ◽  
Stefan Mitsch ◽  
Werner Retschitzegger ◽  
Wieland Schwinger ◽  
André Platzer
Keyword(s):  
Hybrid System ◽  
System Component

scholarly journals Solar Hybrid System Component Study in Low Concentrated Sunlight

2021 ◽  
Vol 2021 ◽  
pp. 1-13
Author(s):  
Petru A. Cotfas ◽  
Daniel T. Cotfas
Keyword(s):  
Renewable Energy ◽  
Hybrid System ◽  
Concentration Ratio ◽  
Research Direction ◽  
Fresnel Lens ◽  
Active Area ◽  
System Component ◽  
Exposed Surface ◽  
Graphite Sheet ◽  
Ceramic Support

The solar energy is increasingly used as a renewable energy source. Raising the efficiency of energy conversion from solar to useful energy (electric and thermal) represents an important research direction in the renewable energy domain. Using hybrid systems for electric and thermal energy cogeneration can be a solution. In this study, a hybrid system (HS) is designed, manufactured, implemented, and experimentally tested under concentrated sunlight with a concentration ratio of 25 suns, obtained using a Fresnel lens as a sunlight concentrator. The HS comprises of four concentrated photovoltaic cells (CPVs), four thermoelectric generators (TEGs), and a solar thermal collector (STC). The HS is studied in three configurations of the exposed surface: only the CPV active area, the CPV active area with ceramic support, and the CPV active area with ceramic support covered with graphite sheet. Results reveal that the efficiency of each system component is affected by the exposed surface. If the efficiencies of the CPVs decrease from 32.3% to 30.8% from the first configuration to the last one, the efficiencies of TEGs and STC increase from 0.12% to 0.44 and from 26.3% to 52.0%, respectively. Increasing the concentration ratio from 25 to 33 suns, the power of the CPVs increases with almost 31%, but the efficiency decreases slightly, instead the efficiencies of the TEGs and STC increase.

Kryothermie-Hybrid-System mit intern gasgekühltem Applikator zur Radiofrequenzablation

2007 ◽  
Vol 179 (S 1) ◽  
Author(s):  
H Rempp ◽  
S Clasen ◽  
M Voigtländer ◽  
S Kempf ◽  
A Weihusen ◽  
...  
Keyword(s):  
Hybrid System

Control of odor using an electrostatic precipitator andadsorption hybrid system in unregulated facilities

2014 ◽  
Vol 13 (2) ◽  
pp. 113-123 ◽  
Author(s):  
Hak-Song Jeon ◽  
◽  
Jong-Min Kim ◽  
Kwang-Han Bae ◽  
Tae-Oh Kim
Keyword(s):  
Hybrid System ◽  
Electrostatic Precipitator

“Collective Redress” in European Competition Law

2016 ◽  
Vol 14 (4) ◽  
pp. 388-414
Author(s):  
Alexandra P. Mikroulea
Keyword(s):  
Hybrid System ◽  
Competition Law ◽  
Mixed System ◽  
Basic Question ◽  
Effective Implementation ◽  
The United Kingdom ◽  
Collective Redress ◽  
Opt Out ◽  
Private Autonomy ◽  
European Competition Law

AbstractOpt-in or opt-out? That is the basic question to be answered. The decision to promote actions of “opt-in” type as opposed to those of the “opt-out” type, for the sake of private autonomy, does not ensure the effective application of european competition law. On the contrary, it may decrease the application’s intensity and effectiveness. Recent reforms among European state members such as in the United Kingdom, Belgium, the Netherlands, Denmark and Norway are powerful indications that the opt-out principle may result in the effective implementation of competition law. There is no doubt that a mixed system (hybrid system), providing the court with the power to decide in favour of either the opt-in or the opt-out system, will result in better implementation of competition law. At the present time there are two pending cases in England (Dorothy Gibson and Mastercard) for which the decision on opt-out or opt-in are highly anticipated. Should the court decide, in one or both of the cases, on an opt-out approach, this will bring a momentous reevaluation of the entire collective redress concept.

Sensorless Fuzzy MPPT Technique of Solar PV and DFIG Based Wind Hybrid System

2017 ◽  
Vol 10 (3) ◽  
pp. 152
Author(s):  
Marouane El Azzaoui ◽  
Hassane Mahmoudi ◽  
Karima Boudaraia
Keyword(s):  
Hybrid System ◽  
Solar Pv

SHERPEC-Hybrid System of Renewable Energies for Production of Electricity and Climatization

2010 ◽  
Vol 1 (08) ◽  
pp. 1386-1391
Author(s):  
Iolanda Sousa ◽  
José Pereira ◽  
Hernani Alcobia ◽  
Paulo Pereirinha
Keyword(s):  
Hybrid System ◽  
Renewable Energies

FLC based photovoltaic battery diesel hybrid system management and control

2000 ◽  
Author(s):  
M. Zahran ◽  
A. Hanafy ◽  
O. Mahgoub ◽  
M. Kamel
Keyword(s):  
Hybrid System ◽  
System Management ◽  
And Control
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